U.S. patent number 3,757,774 [Application Number 05/253,310] was granted by the patent office on 1973-09-11 for massage sandal.
Invention is credited to Kimio Hatuno.
United States Patent |
3,757,774 |
Hatuno |
September 11, 1973 |
MASSAGE SANDAL
Abstract
A massage sandal having a base, a plurality of projections
provided on the upper and lower surfaces of said base, and a band
fixed to said base, where said projections stimulate the sole of
the foot to facilitate the circulation of the blood and strengthen
the connective tissue of the sole of the foot by massaging the sole
of the foot during the walking of the person who wears it.
Therefore, the sandal is good for the health of the foot.
Inventors: |
Hatuno; Kimio (Niiza,
Saitama-ken, JA) |
Family
ID: |
43598091 |
Appl.
No.: |
05/253,310 |
Filed: |
May 15, 1972 |
Foreign Application Priority Data
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|
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|
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Oct 21, 1971 [JA] |
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46/83551 |
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Current U.S.
Class: |
601/28;
36/141 |
Current CPC
Class: |
A43B
13/184 (20130101); A43B 3/128 (20130101); A43B
7/146 (20130101); A61H 7/001 (20130101); A61H
2201/1695 (20130101); A61H 2201/1284 (20130101) |
Current International
Class: |
A43B
13/18 (20060101); A43B 3/12 (20060101); A61H
7/00 (20060101); A61h 001/02 () |
Field of
Search: |
;128/25B,67,582
;272/57D |
References Cited
[Referenced By]
U.S. Patent Documents
Primary Examiner: Trapp; Lawrence W.
Claims
I claim:
1. A massage sandal which comprises in combination,
A. a base of said sandal with the shape of the periphery of the
sole of the foot;
B. a plurality of projections provided on the upper surface of said
base in which each length of said projections corresponding to the
concave portion of the sole of the foot is long and each length of
said projections corresponding to the convex portion of the sole of
the foot is short;
C. a plurality of other projections provided on the lower surface
of said base in which each position of said other projections is
symmetric to each of said projections on the upper surface with
regard to said base and each length of said other projections is
the same as the length of each corresponding projection on said
upper surface of said base; and
D. a band fixed to said base of said sandal.
Description
FIELD OF THE INVENTION
This invention relates to massage sandals which are comfortable and
good for the health of the body, especially for the feet.
Further the invention relates to the sandals which have a plurality
of wart-like projections on their upper and lower surfaces, and
said projections stimulate the soles of the feet and facilitate the
circulation system of the blood within the sole of the feet.
Still further, the invention relates to the sandals which can be
produced easily.
BACKGROUND OF THE INVENTION
In these modern days, the common run of people have relatively
little chances of walking, and it is very rare to walk on the
unpaved rough roads. Therefore, the feet of the people are
physically weak, and it will be not to much to say that the people
suffer from some kind of disease.
It goes without saying that the most preferable method to keep the
health of the feet is to walk with bare feet on the natural ground.
However, nowadays unfortunately, most of roads are artifical ones
such as those paved with asphalt or concrete, therefore, the
walking in the natural circumstances with bare feet cannot be
easily hoped for.
BRIEF SUMMARY OF THE INVENTION
In view of the above situation, the object of the present invention
is to provide novel sandals which improve the condition of the
health of the body, especially of the feet. And pursuant to the
above-mentioned object, the sandals of the present invention are
provided with wart-like projections on their upper and lower
surfaces, thereby the wart-like projections of the sandals are
closely contacted with the soles of the feet of the person who
wears said sandals, and the projections of said sandals give the
sense just as he walks on the natural ground, and further the
above-mentioned defects can be covered up.
Another object of the invention is to provide the sandals in a
novel configuration which can be produced easily in the commercial
scale production processes.
BRIEF DESCRIPTION OF THE DRAWINGS
These and other features and characteristics of the invention will
be more fully understood by referring to the following detailed
description presented solely for the purpose of illustration and to
the accompanying drawings, in which:
FIG. 1 is a perspective view of the sandal of the present
invention;
FIG. 2 is a longitudinal cross sectional view taken along the line
II -- II in FIG. 1;
FIG. 3 is a transversal cross sectional view taken along the line
III -- III in FIG. 1; and
FIG. 4 is also a transversal cross sectional view taken along the
line IV -- IV in FIG. 1.
DETAILED DESCRIPTION OF THE INVENTION
Now referring to the accompanying drawings in FIGS. 1 to 4,
inclusive, the numeral 1 indicates the base of the sandal of the
invention. Said base 1 is provided with a plurality of wart-like
projections 2 on its upper surface and similar projections 3 on its
lower surface. The configuration of said base 1 is like the plan
shape of the sole of the foot and the thickness of which is almost
equal throughout. Said base 1 and the projections 2 and 3 are
formed integrally by using resilient materials such as elastic
synthetic resins, synthetic rubber and natural rubber through
molding process such as the injection molding. As for said
synthetic materials, for example, butyl rubber, polyvinyl chloride,
polyethylene etc. may be used.
On the portion of the base 1 corresponding to the plantar arch of
the foot, longer projections 2a are provided, and on the heel
portion are provided with shorter projections 2b, and further other
remaining portions are provided with projections in medium length.
Thereby the face formed by the tips of the projections 2 fits well
to the rugged surface of the sole of the foot.
While on the opposite side, i.e., the lower side of the base 1 is
provided with a plurality of the projections 3, and the length of
each projection 3 is equal to that of the projection 2 at the
corresponding position on the upper surface of the base 1. Thus the
shapes of the projections 2 and 3 are symmetric with each other
with respect to the base 1. The base 1 is further provided with a
band 4 and a binding metal 5.
The sandals of the present invention having the above-explained
construction, when such sandals are used, the projections 2 and 3
on the bases 1 of the sandals elastically massage the soles of the
feet to stimulate, and relieve the fatigue of the feet and refresh
the body and mind of the person who wears them. In addition to
that, the sandals of the invention facilitate the circulation of
the blood in the feet, strengthen the connective tissues of the
weak feet, cure the slightly flat feet, and further stimulate the
bandy legs or plumpy feet to create the beauty of leg lines.
Further, the projections on the both surfaces of the base of the
sandal in the invention are provided symmetrically with regard to
the plane of the base, accordingly, both sandals, right and left,
can be formed with using the same mold, and only the binding metals
5 may be fixed to the proper sides of the bands, respectively.
Therefore, the production cost for the sandals can be greatly
reduced.
As disclosed in detail in the above, the sandals of the present
invention comply with the requirements of massage and treatment of
the feet, and by using always the sandals of the invention, anyone
can resume the feeling of the bare-foot walking on the natural
ground.
It should be emphasized, however, that the specific embodiment as
described and shown herein are intended as merely illustrative and
in no way restrictive of the invention.
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